范文编号:JX264 所有图纸,任务书,外文翻译。范文字数:42101.页数:97 摘 要 综合机械化采煤,是大幅度增加煤炭产量、提高经济效益的必由之路。为了满足对煤炭日益增长的需要,必须大量生产综合机械化采煤设备,迅速增加综合机械化采煤工作面。本文所设计的掩护式液压支架具有整体性好、支护安全,对工作面支护适应性强,体积小,重量轻,成本低,运输、安装、拆卸、使用均比较方便的特点。其掩护梁是倾斜的,铰接在顶梁和底座之间,从运动学上说,它是稳定的,这也是掩护式支架优于节式支架和垛式支架的一个主要方面。掩护式支架可以完全封锁采空区,防止岩石碎片落入支架的工作面。因此,掩护式液压支架的工作面一般都比较清洁。
The coal mining of comprehensive mechanization is the way that must be taken to increase significantly coal output and enhance the economic efficiency. In order to meet the needs which grows day by day to the coal, we must largely produce comprehensive mechanization mining coal equipment, rapidly increase the comprehensive mechanization mining coal working surface. Sheild hydraulic support that designed in this paper has the characteristic of integrity well, support safe, adaptability strong, volume small, the weight light, the cost low, the transportation –installment-disassembly and the use quite convenient. Its caving shields are hinge-jointed to the canopy and the base making the shield a kinematically stable support, a major advantage over the frames and the chocks. It also completely seals off the gob and prevents rock debris from getting into the face side of the support. Thus the shield-supported face is generally clean.
目 录 第一章 概述 1
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